Ukrainian President Volodymyr Zelenskyy said Tuesday that he had a "productive" phone call with U.S. President Donald Trump about ending the Russia-Ukraine conflict. "It is truly a must to stop the killing as soon as possible, and we fully support this," Zelenskyy wrote on X.

He added that the discussions also covered sanctions against Russia, Ukraine's cooperation with NATO member states, and bilateral defense cooperation between Ukraine and the United States. 

Zelenskyy mentioned that Ukraine has already prepared a draft agreement with the United States on drone cooperation.